Taiwan EPA consulted on March 29 the draft revisions to the Categories and Management of Handling for Concerned Chemical Substances Regulation, a subsidiary regulation under the Toxic and Concerned Chemical Substances Control Act (TCCSCA). As proposed, ammonium nitrate and hydrogen fluoride will be designated as the second and third concerned chemicals, following the previous designation of nitrous oxide as the first concerned chemical on October 30, 2020 (ChemLinked news). It is now subject to a period of public consultation lasting 60 days.